National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Fog/Mist

26°F

-3°C

Humidity 93%
Wind Speed Calm
Barometer 29.85 in (1011.2 mb)
Dewpoint 24°F (-4°C)
Visibility 6.00 mi
Last update 6 Dec 8:55 pm EST
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Partly cloudy, with a low around 27. West wind 5 to 10 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 37. West wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 37 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly between 8pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 18. North wind 5 to 10 mph becoming west in the evening.

    Low: 18 °F

    Chance Snow

  • Monday

    Monday: Sunny, with a high near 26. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11. Northwest wind 5 to 10 mph.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow between 10pm and 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Chance Snow

  • Wednesday

    Wednesday: A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 27. West wind 5 to 10 mph.
Sunday
Increasing clouds, with a high near 37. West wind 5 to 10 mph becoming light and variable in the afternoon.
Sunday Night
A 30 percent chance of snow, mainly between 8pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 18. North wind 5 to 10 mph becoming west in the evening.
Monday
Sunny, with a high near 26. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 11. Northwest wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 34.
Tuesday Night
A chance of snow between 10pm and 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Wednesday
A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 42.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A 30 percent chance of rain before noon. Partly sunny, with a high near 41.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 35.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.04°N 70.72°W (Elev. 3 ft)
Last Update:
7:43 pm EST Dec 6, 2025
Forecast Valid:
9pm EST Dec 6, 2025-6pm EST Dec 13, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation